[Website] Add ADBC 24 release

Author: lidavidm

_posts/2026-07-28-adbc-24-release.md

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+---
+layout: post
+title: "Apache Arrow ADBC 24 (Libraries) Release"
+date: "2026-07-28 00:00:00"
+author: pmc
+categories: [release]
+---
+<!--
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+See the License for the specific language governing permissions and
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+{% endcomment %}
+-->
+
+The Apache Arrow team is pleased to announce the version 24 release of
+the Apache Arrow ADBC libraries. This release includes [**57
+resolved issues**][1] from [**28 distinct contributors**][2].
+
+This is a release of the **libraries**, which are at version 24.  The
+[**API specification**][specification] is versioned separately and is at
+version 1.1.0.
+
+The subcomponents are versioned independently:
+
+- C/C++/GLib/Go/Python/Ruby: 1.12.0
+- C#: 0.24.0
+- Java: 0.24.0
+- R: 0.24.0
+- Rust: 0.24.0
+
+The release notes below are not exhaustive and only expose selected
+highlights of the release. Many other bugfixes and improvements have
+been made: we refer you to the [complete changelog][3].
+
+## Release Highlights
+
+Note: we are planning to require C++20 starting from the next release.
+
+### Breaking/Major Changes
+
+- The documentation has been overhauled, in particular to make it clearer how
+  to use ADBC and where to download drivers.
+- We have stopped development on drivers for Apache DataFusion, BigQuery,
+  Databricks, and Snowflake. Existing packages will continue to be available,
+  but the code has been removed and we may archive pages on PyPI and other
+  package indices. All four of these systems now have ADBC drivers developed
+  by the vendors themselves or other third parties; see
+  [Drivers](https://arrow.apache.org/adbc/24/driver/index.html) in the
+  documentation for details.
+- Similarly, support for Amazon Redshift in the PostgreSQL driver has been
+  removed. This support was always experimental and incomplete, and a
+  dedicated driver has been available from a third party.
+- Java API definitions were narrowed so that `close` is only declared to throw
+  `AdbcException` as a checked
+  exception. ([#4451](https://github.com/apache/arrow-adbc/pull/4451))
+- The PostgreSQL driver now lazily initializes transactions to make it work
+  better with connection
+  pools. ([#4424](https://github.com/apache/arrow-adbc/pull/4424))
+
+### Core APIs & Client Libraries
+
+C# now has a native driver manager, allowing it to load drivers, manifests,
+and profiles ([#4075](https://github.com/apache/arrow-adbc/pull/4075),
+[#4340](https://github.com/apache/arrow-adbc/pull/4340),
+[#4341](https://github.com/apache/arrow-adbc/pull/4341),
+[#4330](https://github.com/apache/arrow-adbc/pull/4330)). The core libraries
+are now compatible with AOT compilation, enabling drivers to be built as
+standalone shared libaries
+([#4243](https://github.com/apache/arrow-adbc/pull/4243),
+[#4318](https://github.com/apache/arrow-adbc/pull/4318)).
+
+The Go `database/sql` adapter now supports converting more Arrow types to Go
+types ([#4416](https://github.com/apache/arrow-adbc/pull/4416)).
+
+The Java core APIs now support a "fluent" style ingest API (#4466). Also,
+support for dynamically loading drivers for use in Java has been greatly
+expanded and should now support all of the ADBC APIs and features expected of
+a client library ([#4452](https://github.com/apache/arrow-adbc/pull/4452),
+[#4211](https://github.com/apache/arrow-adbc/pull/4211),
+[#4411](https://github.com/apache/arrow-adbc/pull/4411),
+[#4202](https://github.com/apache/arrow-adbc/pull/4202),
+[#4359](https://github.com/apache/arrow-adbc/pull/4359),
+[#4212](https://github.com/apache/arrow-adbc/pull/4212),
+[#4263](https://github.com/apache/arrow-adbc/pull/4263),
+[#4229](https://github.com/apache/arrow-adbc/pull/4229),
+[#4203](https://github.com/apache/arrow-adbc/pull/4203),
+[#4361](https://github.com/apache/arrow-adbc/pull/4361),
+[#4362](https://github.com/apache/arrow-adbc/pull/4362),
+[#4249](https://github.com/apache/arrow-adbc/pull/4249),
+[#4250](https://github.com/apache/arrow-adbc/pull/4250),
+[#4398](https://github.com/apache/arrow-adbc/pull/4398),
+[#4397](https://github.com/apache/arrow-adbc/pull/4397),
+[#4423](https://github.com/apache/arrow-adbc/pull/4423),
+[#4395](https://github.com/apache/arrow-adbc/pull/4395),
+[#4396](https://github.com/apache/arrow-adbc/pull/4396),
+[#4391](https://github.com/apache/arrow-adbc/pull/4391)).
+
+The JavaScript client library no longer requires the `driver` parameter and
+can infer the driver to load based on the URI, or can accept a profile
+([#4357](https://github.com/apache/arrow-adbc/pull/4357)).
+
+The R client library no longer requires the `driver` parameter and can infer
+the driver to load based on the URI, or can accept a profile
+([#4535](https://github.com/apache/arrow-adbc/pull/4535)).
+
+Some tweaks have been made to the Rust core APIs to better support interop
+with dynamically loaded drivers and make certain conventions clearer
+([#4427](https://github.com/apache/arrow-adbc/pull/4427),
+[#4510](https://github.com/apache/arrow-adbc/pull/4510),
+[#4350](https://github.com/apache/arrow-adbc/pull/4350),
+[#4141](https://github.com/apache/arrow-adbc/pull/4141),
+[#4181](https://github.com/apache/arrow-adbc/pull/4181),
+[#4473](https://github.com/apache/arrow-adbc/pull/4473),
+[#4469](https://github.com/apache/arrow-adbc/pull/4469)).
+
+### Drivers
+
+The Flight SQL driver now recognizes URIs with the `flightsql://` scheme
+([#4488](https://github.com/apache/arrow-adbc/pull/4488)). It also has more
+support for logging and OpenTelemetry tracing
+([#4322](https://github.com/apache/arrow-adbc/pull/4322),
+[#4486](https://github.com/apache/arrow-adbc/pull/4486)).
+
+The PostgreSQL driver now uses libpq version 18.4 (up from 16.9)
+([#4566](https://github.com/apache/arrow-adbc/pull/4566)). Several bugs have
+been fixed around handling of the NUMERIC type, and it has been optimized on
+platforms where int128 is available (generally, platforms other than Windows)
+([#4536](https://github.com/apache/arrow-adbc/pull/4536),
+[#4499](https://github.com/apache/arrow-adbc/pull/4499),
+[#4523](https://github.com/apache/arrow-adbc/pull/4523),
+[#4498](https://github.com/apache/arrow-adbc/pull/4498)). GetObjects now
+populates the `xdbc_type_name` field
+([#4457](https://github.com/apache/arrow-adbc/pull/4457)). JSON columns are
+now returned with the `arrow.json` extension type
+([#4415](https://github.com/apache/arrow-adbc/pull/4415)), and ingesting into
+JSONB columns is now supported
+([#4505](https://github.com/apache/arrow-adbc/pull/4505)).
+
+The SQLite driver now uses SQLite version 3.53.1 (up from 3.51.2)
+([#4566](https://github.com/apache/arrow-adbc/pull/4566)). It now recognizes
+URIs with the `sqlite://` scheme
+([#4463](https://github.com/apache/arrow-adbc/pull/4463)).
+
+## Contributors
+
+```
+$ git shortlog --perl-regexp --author='^((?!dependabot\[bot\]).*)$' -sn apache-arrow-adbc-23..apache-arrow-adbc-24
+    58	David Li
+    16	Bryce Mecum
+    11	Fredrik Fornwall
+     7	Curt Hagenlocher
+     7	eitsupi
+     6	Mandukhai Alimaa
+     5	davidhcoe
+     4	Matt Topol
+     4	takuya kodama
+     3	Ian Cook
+     3	복준수
+     2	Artur Rakhmatulin
+     2	Austin Bonander
+     2	Bruce Irschick
+     2	Daniel_McBride
+     2	Emil Sadek
+     1	Arnold Wakim
+     1	Aurélien Pupier
+     1	Dan Liu
+     1	Felipe Oliveira Carvalho
+     1	Kent Wu
+     1	Neal Richardson
+     1	Nir Portal
+     1	Pavel Agafonov
+     1	Rishav Rungta
+     1	Shubham Pandey
+     1	mete
+     1	xinyu.lin
+```
+
+## Roadmap
+
+We are working on the next revision of the API standard, focusing on missing
+features (primarily metadata/catalog data). We welcome anyone interested in
+contributing. Current progress can be found in the [1.2.0 specification
+milestone](https://github.com/apache/arrow-adbc/milestone/9).
+
+## Getting Involved
+
+We welcome questions and contributions from all interested.  Issues
+can be filed on [GitHub][4], and questions can be directed to GitHub
+or the [Arrow mailing lists][5].
+
+[1]: https://github.com/apache/arrow-adbc/milestone/28
+[2]: #contributors
+[3]: https://github.com/apache/arrow-adbc/blob/apache-arrow-adbc-24/CHANGELOG.md
+[4]: https://github.com/apache/arrow-adbc/issues
+[5]: {% link community.md %}
+[specification]: https://arrow.apache.org/adbc/24/format/specification.html